1 /* Multiple versions of memchr. 2 Copyright (C) 2013-2021 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #if IS_IN (libc) 20 # undef memchr 21 /* Redefine memchr so that the compiler won't make the weak_alias point 22 to internal hidden definition (__GI_memchr), since PPC32 does not 23 support local IFUNC calls. */ 24 # define memchr __redirect_memchr 25 # include <string.h> 26 # include "init-arch.h" 27 28 extern __typeof (__redirect_memchr) __memchr_ppc attribute_hidden; 29 extern __typeof (__redirect_memchr) __memchr_power7 attribute_hidden; 30 31 extern __typeof (__redirect_memchr) __libc_memchr; 32 33 libc_ifunc (__libc_memchr, 34 (hwcap & PPC_FEATURE_HAS_VSX) 35 ? __memchr_power7 36 : __memchr_ppc); 37 #undef memchr 38 weak_alias (__libc_memchr, memchr) 39 #else 40 #include <string/memchr.c> 41 #endif 42